Don or Donald Clark may refer to:
Sports Donald Clark (cricketer) (1914–1994), Australian cricketer who played for Tasmania Don Clark (footballer) (1917–2014), English association football player Don Clark (American football) (1923–1989), American football player and coach, head football coach at the University of Southern California Don Clark (Canadian football) (born 1936), running back in the Canadian Football League Don Clark (rugby union) (born 1940), New Zealand rugby union player
Other Don Clark (psychologist) (born 1930), clinical psychologist who has specialized in group and individual work with gay people Donald C. Clark Sr. (1931–2020), American business executive Don Clark (musician) (born 1975), guitarist of Christian metal band Demon Hunter
See also Don Clarke (1933–2002), rugby union player Don R. Clarke (born 1945), general authority of the Church of Jesus Christ of Latter-day Saints Donald Clarke (disambiguation)